baber/WOPTO huggingface dataset:
Patent GB-682540-A (GB)
Title: Improvements in or relating to silicone elastomers
IPC: C08F4/34
Filed: 1950-04-06
Abstract: A composition for making an elastomer comprises (a) a benzene soluble diorganopolysiloxane containing the units R2SiO, wherein R is a methyl, phenyl or trimethylsilylmethylene, (CH3)3SiCH2-, radical and in which at least 90 per cent of the radicals are methyl radicals, the polysiloxane having a penetrometer reading of less than 380 after 10 seconds at 25 DEG  C., (b) a silica filler in amount of 20 to 50 parts by weight per 100 parts of polysiloxane, the filler having a pore volume of at least 4 c.c. per gram and a heat of wetting of from 0.3 to 1.0 calories per c.c. of pore volume, and (c) 1.5 to 6 parts by weight per 100 parts of polysiloxane of benzoyl peroxide and/or tertiary butyl perbenzoate as a vulcanizing agent.  The polymers used may be made by catalytic polymerization and co-polymerization of organosiloxanes using as catalysts, sulphuric acid, oleum, alkali metal hydroxides, alkali metal salts of organosilanols and, as described in Specification 682,541, alkali metal alcoholates and complexes of alkali metal hydroxides and alcohols.  The polysiloxane and filler, e.g. silica aerogel, may be mixed in a dough mixer and then milled, the filler preferably being added in portions of less than a third of the total amount of filler at any one time.  The vulcanizing agent may be added either with the filler or after the addition of the filler.  The compounded siloxane is then vulcanized by heating to above 110 DEG  C., e.g. from 110 DEG  to 250 DEG  C., for at least 3 minutes, with optional additional curing in the vulcanizing press or in an oven.  If desired, the vulcanized products may be deodorized by heating up to 250 DEG  C. in an oven.  In examples, the cyclic siloxanes, dimethylsiloxane, octamethyltetrasiloxane and copolymers thereof, and copolymers of dimethylsiloxane and trimethylsilymethylene-trimethylsiloxane are polymerized by heating with potassium hydroxide - isopropanol complex ((CH3)2.CHOH)x.KOH.  Other additives such as pigments and the oxides of iron, mercury and other heavy metals may be incorporated in the elastomers.  The elastomers may be used for electrical insulation, for the production of articles such as tubing, hoses, sheeting, &c., either by moulding or extrusion and for waterproofing fabrics, e.g. by coating the fabric with the composition or a solution thereof and heating the coated fabric to above 110 DEG  C.  Specification 610,152 also is referred to.ALSO:A filler for silicone elastomers (see Group IV(a)) consists of finely divided silica having a pore volume of at least 4 cc. per gram and a heat of wetting of 0.3 to 1.0 caloric per cc. of pore volume.  Methods ferure silicas, and surface-modified diato-of determining the pore volume and heat frame silicas, and surface-modified diatomaceous earths have the required characteristics.
Patent GB-100789-A (GB)
IPC: B62D21/14
Filed: 1916-06-21
Abstract: 100,789. Hayes Diefenderfer Co., (Assignees of Hayes, E.). June 28, 1915, [Convention date]. Frame components, sections and forms of, and applying and combining. - For converting a pleasure into a commercial car, means are provided for lengthening the chassis, moving the rear axle rearwards, and lengthening the driving- connexions. The rear axle and supporting-spring is removed and clamped to an extension frame which is secured to the chassis, and a length of shafting is inserted between the universal joint and transmission. The rear axle and spring 13 are normally held in a cross-member 12. To lengthen the chassis, they are bolted in a similar cross-member 10 formed with side members 16 adapted to be clamped to the frame members 1, a transverse portion fitting in the cross-member 12, to which it is clamped by clamps 24. The universal joint is, in the extended position, supported by a transverse member 29 clamped to the side members 1, and a length of shaft enclosed in a casing 35 is interposed between the universal joint and transmission shaft,
Patent GB-557431-A (GB)
Title: Wash-tub or sink and wringing machine equipment
IPC: D06F45/14
Filed: 1942-06-26
Abstract: 557,431. Mangling and wringing apparatus. ACME WRINGERS, Ltd., and BURT, J. W. L. June 26, 1942, No. 8812 [Class 138 (ii)] A folding wringer, washtub and sink equipment has a cabinet 18 mounted between the two tubs and fitted with a wringer that can be swung in its longitudinal plane from the lower and " out-of-use " position to the upper position for use, where it is supported by the cabinet structure. The wringer swings on a rear pivot 19, Fig. 2. and movement down is cushioned and up is assisted by a spring 25 and link 27 which can just pass the dead centre position when closing, and sprung stops 22, 23 hold the machine up for use. The front of the cabinet is normally closed by a hinged door 20 and the top may be open or closed by a plate slidable in grooves in the side walls of the cabinet. Additionally or alternatively, the top of the cabinet may be covered by a draining board 21 arranged to extend across the top of the tub and the cabinet.
Patent GB-764762-A (GB)
Title: Improvements in the construction of electrical indicating instrument casings
IPC: G01R11/04
Filed: 1955-03-25
Abstract: 764,762. Indicating-apparatus. SANGAMO WESTON, Ltd. March 25, 1955 [April 2, 1954], No. 8816/55. Class 106 (4). A housing for an indicating-instrument comprises an open case 10, to which the mechanism is attached, and a cover 11 secured together by the snap action of a coupling comprising cooperating lips 28 and notches 27. The notches 27 are formed in a flange 26 which has two countersunk holes to receive screws 41 for mounting the instrument on a panel and a ledge 31 between which and the cover 11 a dial 13 is clamped, being located by holes close fitting round extensions 33 of bridge posts 35. The mechanism is secured by screws 25 to a plate 24 which is secured in the bottom of the case 10 by screws 23. The case 10 may be made from an alkyd moulding powder and the cover 11 from a transparent plastic such as a moulded methacrylate plastic. The cover may be coated with an opaque paint leaving a suitably shaped window for viewing the scale. The housing is suitable for electrical instruments and insulation is provided between the heads of the fixing screws 41 and the metal scale plate 13.
Patent GB-453784-A (GB)
Title: Improvements in or relating to plant for cleaning coal and other like granular material
IPC: B03B5/20
Filed: 1935-03-21
Abstract: 453,784. Washing granular material. INTERNATIONAL COMBUSTION, Ltd., and DAVIDSON, G. W., Aldwych House, Aldwych, London. March 21, 1935, No. 8859. [Classes 82 (ii) and 117] [See also Group XXIX] Coal and like material is cleaned by introducing a gas into a chamber to cause fluid pulsations through a bed of the material, the pressure of the source supplying the gas being varied in accordance with the maximum pressure in the chamber. In the Figure, a pipe 1 joins the air chamber of the wash box to an oil chamber 2 which communicates by pipes 3, 4, having one-way and needle valves 11, 12, with a second chamber 5. The latter contains a bellows 6 connected by a rod 7 to the pressure-adjusting device of a reducing-valve 13, supplied with oil at constant pressure through a pipe 14, the upward movement of the rod 7 being limited by the engagement of a spring-pressed board 8 connected thereto with stops 10. The outlet of the valve 13 is connected to a second chamber 16, a bellows 19 in which is connected to a reliefvalve 17 provided on the air receiver 18, which valve is also loaded by a weighted lever 22 pivoted at 23 and controlled by a dashpot device 25.
Patent GB-609777-A (GB)
Title: Improvements in apparatus for cleaning watch parts and other small parts of machinery
IPC: G04D3/08
Filed: 1946-03-22
Abstract: 609,777. Apparatus for cleaning watch parts. LANZETTER, S. March 22, 1946, No. 8865. [Class 139] [Also in Group II] Apparatus for cleaning watch parts and other small parts of machinery of the type described in Specification 503,800 in which the parts are placed in a wire basket which is submerged into a plurality of jars in turn and which is mounted on a motor spindle has the jars arranged in line and the basket mounted on a pillar which slides horizontally. The jars 1 are in line in a base member 3. Two vertical members 4 support horizontal rods 5, 6 between which slides a vertical pillar 7 carried by two brackets 8, 9 which may be clamped in position. A basket 13 is mounted on the spindle by a motor 10 in a recessed lid 14 mounted on a bracket 11 slidable vertically on the pillar 7. The basket is formed with bayonet slots 131 which engage pins 15 on an attachment to the spindle 12.
Patent GB-284893-A (GB)
Title: Improvements in and relating to boots with high uppers
IPC: A43B3/02
Filed: 1927-03-31
Abstract: 284,893. Randall, C. W. March 31, 1927. Goloshes; top boots.-Rubber gum boots or leather Russian boots, wherein the uppers are shaped to the leg and divided down the front by overlapping edges are characterized in that the inner edge 3a overlaps the leg to a considerable distance while the outer edge. 3b overlaps the inner one to a position at the side of the boot where it is fastened with snap fastening 4, 4a. The lap portion 3a is of increasing width from its lower portion to the top edge of the boot.
Patent GB-1032812-A (GB)
Title: Rocket propulsion unit
IPC: F02K9/50
Filed: 1963-03-06
Abstract: 1,032,812. Rocket propulsion. H. BECKMANN. March 6, 1963 [March 6, 1962], No. 9008/63. Heading F3A. [Also in Division F1] In a rocket propulsion unit at least one of the oxidant and fuel is pulverulent material. This material is stored in a container 1 having a porous bottom 3 and situated above an air chamber 7. Gas stored under pressure in a container 5 conveys the pulverulent material to the combustion chamber in the rear of the rocket, and acts also as an oxidant or fuel. Gas flows from the container 5 through a pipe 6, fitted with a controllable valve 8, to the air chamber 7 and permeates into the container 1 where it mixes with the pulverulent material. When a sufficient pressure has been attained in the container 1, a valve 14 in a conveyer pipe 4 is opened and the mixture of gas and pulverulent material passes along the pipe 4 to the combustion chamber. A pipe 9 with a valve 10 is provided so that gas can be fed directly to the pipe 4 from the container 5; and a pipe 11 with a valve 12 allows gas from the upper part of the container 1 to be discharged into the pipe 4. If both the oxidant and fuel are pulverulent materials which do not react together under normal conditions and are required in a fixed proportion throughout the operation they are stored together in the container 1, and the gas need not be itself an oxidant or fuel. If two pulverulent materials are used which do react together under normal conditions, they are stored in separate containers and conveyed by the gas along separate pipes to the combustion chamber. The proportion of each pulverulent material and gas entering the combustion chamber is regulated by the valves which are controlled by impulse transmitters.
Patent GB-331187-A (GB)
Title: Improvements in the manufacture of rubber soled footwear and apparatus therefor
IPC: B29C35/00
Filed: 1929-03-20
Abstract: 331,187. Liverpool Rubber Co., Ltd., Amende, F., and Dibdin, T. R. March 20,1939. Vulcanizing boots. - In apparatus for vulcanizing soles &c. of footwear, in which the shoe mounted on an air-bag is supported on a sole plate on a fixed steam chest and is enclosed bv side moulds moving laterally on the steam chest, the mould parts are compressed and locked together by mechanical means operated by the same fluid power as is employed for moving the mould parts. Sole-moulds 4 on plates 6, fixed half-moulds 5, and movable half-moulds 3 are mounted on a steam chest 2. The moulds 3 have depending lugs 8 which when the moulds are half open, engage lugs 7 on the plates 6, so that when completely open, the sole-moulds 4 are withdrawn from the fixed moulds 5, as shown at the right of Fig. 1. The moulds 3 have hollow bearings 12 which engage levers 13 pivoted at 14, connected by arms 16 and link 15, and operated by an arm 17 riding on a cam 18. The cam may be a grooved plate effecting positively both opening and closing of the mould, or as shown, movement in one direction may be effected by springs 24. In operation, movement of a lever 40, to the position shown in Fig. 2, admits pressure fluid to a cylinder 22 to operate the cam-shaft 19 through chain 21 and sprockets 20, 23, and close the moulds. A second cam 33, on the same shaft simultaneously operates a rod 31 to draw down a bridge member 30 having depending lugs 29 engaging abutments 2'7 on the ends of the moulds 3, to lock them. Operation of the lever 40 also withdraws a pin 41, Fig. 2, from a slot 43 in a disc 36 on a shaft 35. As the bridge 8 descends, a rod 70, Fig. 1, operated by a bellcrank lever 73 pivoted on the rod 31 is withdrawn from the path of the lewer 40. This enables it to be moved further to open a valve 62, Fig. 2, admitting air to the air-bag of the shoe, and also to the back of the diaphragm of a friction clutch 44, Fig. 1, which connects the shaft 35 with a constantly-running factory shaft, and rotates the disc 35, on the periphery of which the pin 41 bears. On the completion of a revolution, the pin 41 is drawn into the slot 43 by a spring 42, a spring 67 opens the valve 62 to exhaust the air-bag and release the clutch, and also to throw over the lever 40 to unlock and open the moulds. When vulcanizing top boots, the sole-mould is disposed perpendicularly to the steam chest, and is formed with inclined sides engaged by the side moulds whereby the pressure on the sole is increased as the mould is closed. The one apparatus may be arranged to vulcanize a plurality of articles simultaneously.
Patent GB-999144-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: WEST ERNEST
IPC: D04B15/66
Filed: 1963-03-07
Abstract: Jacquard operated control mechanism for a straight bar knitting machine in which switches in a bank, when closed, operate relays in the circuits of a plurality of rotary counting switches arranged to count differing numbers of courses or fashionings before opening.  A cam on the machine cam-shaft operates the counting switches at each revolution and a second similar cam resets the counting switches in their initial positions after counting their respective numbers.  The selected counting switches are operated in succession.  In the embodiment described one set of counting switches count the number of courses between fashionings and a second set of counting switches count the number of fashionings.  The selection of a counting switch puts the racking mechanism of the jacquard out of action until the switch or switches have completed their count.
Patent GB-809124-A (GB)
Title: Improvements in electric arc welding systems
IPC: B23K9/10
Filed: 1955-03-29
Abstract: 809,124. Electric welding systems. FOSTER TRANSFORMERS Ltd., and JENNINGS, R. E. March 28, 1956 [March 29, 1955], No. 9122/55. Class 38 (4). A main welding transformer 1 is connected through a regulating inductor 2 to a tapped transformer 3 having a bridge rectifier 4 connected across a portion of its winding to provide a low-voltage D.C. source with a short-circuit current of comparatively high value. These electrical characteristics are suitable for gasshielded continuous feed welding. Smoothing of the direct-current waveform is obtained by means of the series inductor 2 or, alternatively, a high-voltage tapping on the transformer 3 is connected through inductor 5 to a rectifier 6 the output of which is in parallel with that of the rectifier 4. The phase angle of the current in the rectifier 6 is retarded so that the combined currents of the two rectifiers never fall to zero. The current drawn from the rectifier 6 is sufficient to maintain the welding-arc and is only a fraction of the main current. Without using the rectifiers, and taking a supply from an intermediate tapping of the transformer 3, the equipment may be used to provide low-voltage A.C. and high short-circuit current. Additional windings 31, 32 may be provided on the transformer 3 for connection to rectifiers 41, 61, which are arranged to be connected in series or parallel for high-voltage or low-voltage operation respectively. The main and additional transformer windings may be combined to form a centretapped auto-transformer winding suitable for use in a double electrode A.C. welding system. Thus, a supply lead is connected to the centre tapping and the two end terminals of the transformer winding are connected to the respective electrodes, Fig. 3 (not shown). Equipment comprising the tapped transformer 3 having an auxiliary winding 34, together with rectifiers 4 and 43, may be set for low- or high-voltage D.C. welding, low- or high-voltage A.C. welding, or double arc welding by adjustment of multiposition switches A, B, and C, and by connecting different links to certain of the terminals a . . . h, the electrode E1 being used only for double arc welding.
Patent GB-684629-A (GB)
Title: Improvements relating to spindles for yarn-spinning and twisting frames
Inventor: EDWARDS ARTHUR WALLACE
IPC: D01H1/02
Filed: 1950-04-14
Abstract: 684,629. Textile ring spinning &c. apparatus. FERRANTI, Ltd. April 13, 1951 [April 14, 1950], No. 9186/50. Class 120(ii) A ring spindle arrangement in which an inner packagesupporting skewer 2 is carried by and revolves with an outer casing 1 that rotates inside the ring 16 and is formed with openings 4 through which yarn 17<SP>1</SP> passes to the skewer 2 has the casing 1 open at the top and provided with a lower part comprising two coaxial tubular portions 6, 9 separated by a fixed, hollow, co-axial pillar support 11, the portion 6 carrying a driving pulley 7 and the portion 9 carrying a bearing 20 for the skewer 2, the lower end of the skewer carrying means for varying the skewer speed. Bearing 20 is supported by a spring collar 20<SP>1</SP>. Mounted at the lower end of the skewer 2 is a brake drum 22 and a copper sleeve 23 that may be influenced by poles 25 of an electromagnet having an energizing coil 24, the voltage of which may vary with the position of the ring rail 18. A permanent magnet may replace the electromagnet, the magnet being moved vertically to vary the braking effect. Instead of braking the skewer 2, it may be run faster than the casing 1 by employing sun-and-planet gearing in association with a magnetic device. When starting-up the device, an additional driving force is applied to the skewer 2 by weights 30 that are attached to the brake drums 22 fixed to the skewer 2 and are pressed against an extension 29 of the portion 9 by springs. As the skewer gathers speed, the weights 30 move outwardly under centrifugal action and the driving connection is broken. A lubricating channel 10 is provided. Specification 268,493, [Class 120(ii)], is referred to.
Patent GB-550782-A (GB)
Title: Improvements in and relating to the granulation of fertilisers
IPC: C05C9/00
Filed: 1941-07-21
Abstract: 550,782. Artificial manures. DU PONT DE NEMOURS & CO., E. 1. July 21, 1941, No. 9192. Convention date, July 20, 1940. [Class 111] Fertilizers comprising or mainly consisting of urea are formed into granules by granulating operations in the presence of water and starch. Other materials which may be present are limestone, rock phosphate, dolomite or conditioning agents such as ground cocoa shells, castor bean or peanut hulls. The mixtures are placed in a known type of horizontal granulating drum and the granules produced are dried in a steam heated rotary drier.
Patent GB-1414074-A (GB)
Title: Curb slip form apparatus
IPC: E01C19/48
Filed: 1973-02-26
Abstract: 1414074 Forming concrete kerbs C M I CORP 26 Feb 1973 9398/73 Heading E1S Slip form apparatus for laying a concrete kerb, e.g., includes a support frame 14 to which the form 12 is pivotally attached at its forward end so that its rearward end can move laterally, such lateral movement being controlled automatically by means of a sensor 220 which co-operates with a control line 226. The frame 14 is mounted on tracks 24, 26 via vertically-adjustable supports 40-48, the front two, 40, 42 being adjusted automatically and respectively via an elevation sensor 230, cooperating with the line 226, and a "crossslope" control, which incorporates a signal source 320 and a level sensor 318 which automatically measures the tilt angle of the machine, the difference in signals being used to adjust the support 42. The rear supports are laterally-linked and controlled manually using a line 392 and indicator 388 (Fig. 3). The front of the form is pivotally attached to a towbar 158, adjustably mounted on frame 14 (Figs. 4, 6, not shown), a manual control for the longitudinal inclination of the towbar being provided via switches 352, 366 via pumps and linkwork (194, 196) (Figs. 4, 10, not shown). At the rear, the form 12 can be moved vertically relative to the frame 14 by a sliding support 104, via a piston and cylinder 112. The lateral movement is provided automatically via sensor 220 and piston- and-cylinder 126. The form 12 can be laterally adjusted on the towbar. and may be closed at the front, or be provided with an extension 150 (Fig. 10, not shown), to allow reinforcing. e.g. of the kerb. Vibrators 212 operate within the mouth portion of form 12. The machine is provided with a track steering sensor 236 which passes a signal to the track-operating motors to adjust the machine direction. A switch 268 allows the machine to spin on its tracks. Several forms of control line are described in the specification. The machine also has a driven auger 60 and a moldboard 64, in front of the form 12, to prepare the ground.
Patent GB-1064005-A (GB)
Title: Improvements relating to air filters
Inventor: HILL GERALD BOWEN
IPC: B01D46/10
Filed: 1965-03-05
Abstract: 1,064,005. Travelling-band air filters. CARTER THERMAL ENGINEERING Ltd. March 7, 1966 [March 5, 1965], No. 9430/65. Heading B1T. The marginal sections of a travelling band of filter medium 5 overlap perforated or slotted angle strips 4, and the air flow (arrows) presses the medium into the perforations or slots to effect sealing of the edges of the exposed part of the band. Angle strips 4 are attached to the framework 3 enclosing the air duct and may have staggered slots 6 (Fig. 2, not shown). Alternatively suitably spaced strips may form a continuous slot along each edge of the band. The band is fed from one roller on to another across the framework 3.